One does...  the other is a switcher.

On Mon, 2 Jul 2001, Michael C. Reid wrote:

> your bench power supply has this thing called a transformer that isolates it
> from the main power input!
>
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dale Botkin
> Sent: Monday, July 02, 2001 4:43 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Bulb Life (x:Modulating headlight)
>
>
> On Mon, 2 Jul 2001, Michael C. Reid wrote:
>
> > Regarding those small disc shaped devices, I understood that some brands
> > were diodes, dropping the voltage in half to save on bulb life, if you
> like
> > the idea of DC being introduced into the power grid of your home.
>
> Ummm...  no more than my bench power supply does.
>
> Dale
> --
> A train stops at a train station.  A bus stops at a bus station.
> On my desk I have a workstation...
>
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--
A train stops at a train station.  A bus stops at a bus station.
On my desk I have a workstation...

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